Abstract
In this paper the power requirements of deception jamming in the signal acquisition phase of BeiDou navigation receiver are discussed in two cases. In the first case, the deception jamming signal is released before the start of the receiver, with the method of analyzing the signal acquisition probability model and the acquisition correlation peak, the conclusion is obtained that the effective power gain of deception jamming signal is not less than 10dB. In the other case, the deception jamming signal is released after the start of the receiver, through analysis of the change of signal to noise ratio, the conclusion is obtained that the effective power gain of deception jamming signal is not less than 12dB. And the validity of the two conclusions is verified by experiments. The research of this paper has the important application value and military significance for the deception jamming detection and defense of BeiDou navigation terminal.
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